Listing 2. cgidisp.py
#!/usr/bin/env python
# $Id: cgidisp.py,v 1.3 1998/09/25 13:45:29 chenna
# Exp chenna $
# $Author: chenna $
# $Version$
# $Date: 1998/09/25 13:45:29 $
# (C) Chenna Ramu, EMBL.
# chenna@embl-heidelberg.de
# This is just a despatcher for cgimode.py !!
#
import string
import os
DispatchError = " Function not available "
class Dispatcher:
def __init__(self):
self.debug = None
def dispatch(self, command,args=None):
mname = 'cmd_' + command
if hasattr(self, mname):
method = getattr(self, mname)
if not args:
return method() #do not just call,
# return the string
else:
return method(args)
else:
print "<PRE>"
self.error(command)
self.ShowAvailableFunc()
print "</PRE>"
def ShowAvailableFunc(self):
a = dir(Dispatcher)
b = []
for j in a:
if j[0:4] != 'cmd_':
continue
b.append(j[4:])
print "Available functions are\n\n "
k = 0
for j in b:
k = k + 1
print " %5d: %s " %(k,j)
return
def error(self,s):
print " <B> Error </B>: <BR> Function ( %s ) not available\n " %s
return
# This is a constant need for many cgi's
def _forkJob(shellString,keepAlive=None):
import os
pid = os.fork()
if pid:
pass
else:
if not keepAlive: # if you the job run
# backround then...
sys.stdout.close()
sys.stderr.close()
os.close(1) # not needed in v 4.0
os.close(2) # not needed in v 4.0
os.system(shellString)
def cmd_Hello(self,parDict):
print " Hello World !"
def cmd_SalesInput(self,parDict):
from sales import *
def cmd_NewMeth(self,parDict):
print "<PRE>"
print " Hello new function "
def cmd_ShowDict(self,parDict):
print "<PRE>"
print "<H1> Debug Info: </H1><HR>"
for k,v in parDict.items():
print "<B>%-30s</B> : %s " %(k,v)
print "</PRE>"
def cmd_OutputForm(self,parDict):
n = 0
print "<PRE>"
for k,v in parDict.items():
n = n + 1
print " %5d: %-20s : %20s " %(n,k,v)
print "</PRE>"
##################################################
# usage:
# cgimodel.py?-fun=DisplayFile&fileName=cgidisp.py
# You need py2html to colour your python source!
# checkout www.python.org
#
def cmd_DisplayFile(self,parDict):
fileName = parDict['fileName']
if not fileName:
print " File name not given "
else:
import py2html
p,fileName = os.path.split(fileName)
# take care of malicious user
print "<B> File: %s </B> " %fileName
py2html.main(['dummy','-stdout',fileName])
def test():
d = Dispatcher()
d.debug = 1
d.dispatch('SalesInput','dummy')
# make an error to see how the traceback works!
d.dispatch('NoFun')
if __name__ == '__main__':
test()
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